3133211231 has 4 divisors (see below), whose sum is σ = 3317517792. Its totient is φ = 2948904672.

The previous prime is 3133211227. The next prime is 3133211273. The reversal of 3133211231 is 1321123313.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1321123313 = 163 ⋅8105051.

It is a cyclic number.

It is not a de Polignac number, because 3133211231 - 2² = 3133211227 is a prime.

It is a super-2 number, since 2×3133211231² = 19634025236129070722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3133211531) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 92153255 + ... + 92153288.

It is an arithmetic number, because the mean of its divisors is an integer number (829379448).

Almost surely, 2^3133211231 is an apocalyptic number.

3133211231 is a deficient number, since it is larger than the sum of its proper divisors (184306561).

3133211231 is a wasteful number, since it uses less digits than its factorization.

3133211231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 184306560.

The product of its digits is 324, while the sum is 20.

The square root of 3133211231 is about 55975.0947386425. The cubic root of 3133211231 is about 1463.2882710488.

Adding to 3133211231 its reverse (1321123313), we get a palindrome (4454334544).

The spelling of 3133211231 in words is "three billion, one hundred thirty-three million, two hundred eleven thousand, two hundred thirty-one".